forked from LBRYCommunity/lbry-sdk
220 lines
8.6 KiB
Python
220 lines
8.6 KiB
Python
import os
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import asyncio
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from typing import List, Optional, Tuple, Iterable
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from concurrent.futures import Executor, ThreadPoolExecutor, ProcessPoolExecutor
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from functools import partial
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from sqlalchemy import create_engine, text
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from lbry.crypto.bip32 import PubKey
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from lbry.schema.result import Censor
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from lbry.blockchain.ledger import Ledger
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from lbry.blockchain.transaction import Transaction, Output
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from .constants import TXO_TYPES
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from . import queries as q
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def clean_wallet_account_ids(constraints):
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wallet = constraints.pop('wallet', None)
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account = constraints.pop('account', None)
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accounts = constraints.pop('accounts', [])
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if account and not accounts:
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accounts = [account]
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if wallet:
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constraints['wallet_account_ids'] = [account.id for account in wallet.accounts]
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if not accounts:
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accounts = wallet.accounts
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if accounts:
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constraints['account_ids'] = [account.id for account in accounts]
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def add_channel_keys_to_txo_results(accounts: List, txos: Iterable[Output]):
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sub_channels = set()
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for txo in txos:
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if txo.claim.is_channel:
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for account in accounts:
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private_key = account.get_channel_private_key(
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txo.claim.channel.public_key_bytes
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)
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if private_key:
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txo.private_key = private_key
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break
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if txo.channel is not None:
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sub_channels.add(txo.channel)
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if sub_channels:
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add_channel_keys_to_txo_results(accounts, sub_channels)
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class Database:
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def __init__(self, ledger: Ledger, url: str, multiprocess=False):
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self.url = url
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self.ledger = ledger
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self.multiprocess = multiprocess
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self.executor: Optional[Executor] = None
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def sync_create(self, name):
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engine = create_engine(self.url)
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db = engine.connect()
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db.execute(text("COMMIT"))
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db.execute(text(f"CREATE DATABASE {name}"))
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async def create(self, name):
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return await asyncio.get_event_loop().run_in_executor(None, self.sync_create, name)
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def sync_drop(self, name):
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engine = create_engine(self.url)
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db = engine.connect()
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db.execute(text("COMMIT"))
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db.execute(text(f"DROP DATABASE IF EXISTS {name}"))
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async def drop(self, name):
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return await asyncio.get_event_loop().run_in_executor(None, self.sync_drop, name)
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async def open(self):
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assert self.executor is None, "Database already open."
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kwargs = dict(
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initializer=q.initialize,
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initargs=(self.url, self.ledger)
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)
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if self.multiprocess:
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self.executor = ProcessPoolExecutor(
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max_workers=max(os.cpu_count()-1, 4), **kwargs
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)
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else:
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self.executor = ThreadPoolExecutor(
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max_workers=1, **kwargs
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)
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return await self.run_in_executor(q.check_version_and_create_tables)
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async def close(self):
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if self.executor is not None:
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self.executor.shutdown()
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self.executor = None
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async def run_in_executor(self, func, *args, **kwargs):
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if kwargs:
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clean_wallet_account_ids(kwargs)
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return await asyncio.get_event_loop().run_in_executor(
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self.executor, partial(func, *args, **kwargs)
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)
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async def execute_fetchall(self, sql):
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return await self.run_in_executor(q.execute_fetchall, sql)
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async def get_best_height(self):
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return await self.run_in_executor(q.get_best_height)
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async def get_blocks_without_filters(self):
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return await self.run_in_executor(q.get_blocks_without_filters)
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async def get_transactions_without_filters(self):
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return await self.run_in_executor(q.get_transactions_without_filters)
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async def get_block_tx_addresses(self, block_hash=None, tx_hash=None):
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return await self.run_in_executor(q.get_block_tx_addresses, block_hash, tx_hash)
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async def get_block_address_filters(self):
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return await self.run_in_executor(q.get_block_address_filters)
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async def get_transaction_address_filters(self, block_hash):
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return await self.run_in_executor(q.get_transaction_address_filters, block_hash)
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async def insert_transaction(self, tx):
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return await self.run_in_executor(q.insert_transaction, tx)
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async def update_address_used_times(self, addresses):
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return await self.run_in_executor(q.update_address_used_times, addresses)
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async def reserve_outputs(self, txos, is_reserved=True):
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txo_hashes = [txo.hash for txo in txos]
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if txo_hashes:
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return await self.run_in_executor(
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q.reserve_outputs, txo_hashes, is_reserved
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)
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async def release_outputs(self, txos):
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return await self.reserve_outputs(txos, is_reserved=False)
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async def release_tx(self, tx):
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return await self.release_outputs([txi.txo_ref.txo for txi in tx.inputs])
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async def release_all_outputs(self, account):
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return await self.run_in_executor(q.release_all_outputs, account.id)
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async def get_balance(self, **constraints):
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return await self.run_in_executor(q.get_balance, **constraints)
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async def get_supports_summary(self, **constraints):
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return await self.run_in_executor(self.get_supports_summary, **constraints)
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async def get_addresses(self, **constraints) -> Tuple[List[dict], Optional[int]]:
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addresses, count = await self.run_in_executor(q.get_addresses, **constraints)
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if addresses and 'pubkey' in addresses[0]:
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for address in addresses:
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address['pubkey'] = PubKey(
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self.ledger, bytes(address.pop('pubkey')), bytes(address.pop('chain_code')),
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address.pop('n'), address.pop('depth')
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)
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return addresses, count
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async def get_all_addresses(self):
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return await self.run_in_executor(q.get_all_addresses)
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async def get_address(self, **constraints):
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addresses, _ = await self.get_addresses(limit=1, **constraints)
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if addresses:
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return addresses[0]
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async def add_keys(self, account, chain, pubkeys):
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return await self.run_in_executor(q.add_keys, account, chain, pubkeys)
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async def get_raw_transactions(self, tx_hashes):
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return await self.run_in_executor(q.get_raw_transactions, tx_hashes)
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async def get_transactions(self, **constraints) -> Tuple[List[Transaction], Optional[int]]:
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return await self.run_in_executor(q.get_transactions, **constraints)
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async def get_transaction(self, **constraints) -> Optional[Transaction]:
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txs, _ = await self.get_transactions(limit=1, **constraints)
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if txs:
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return txs[0]
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async def get_purchases(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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return await self.run_in_executor(q.get_purchases, **constraints)
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async def search_claims(self, **constraints) -> Tuple[List[Output], Optional[int], Censor]:
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return await self.run_in_executor(q.search, **constraints)
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async def get_txo_sum(self, **constraints):
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return await self.run_in_executor(q.get_txo_sum, **constraints)
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async def get_txo_plot(self, **constraints):
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return await self.run_in_executor(q.get_txo_plot, **constraints)
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async def get_txos(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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txos = await self.run_in_executor(q.get_txos, **constraints)
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if 'wallet' in constraints:
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add_channel_keys_to_txo_results(constraints['wallet'], txos)
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return txos
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async def get_utxos(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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return await self.get_txos(is_spent=False, **constraints)
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async def get_supports(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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return await self.get_utxos(txo_type=TXO_TYPES['support'], **constraints)
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async def get_claims(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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txos, count = await self.run_in_executor(q.get_claims, **constraints)
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if 'wallet' in constraints:
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add_channel_keys_to_txo_results(constraints['wallet'].accounts, txos)
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return txos, count
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async def get_streams(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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return await self.get_claims(txo_type=TXO_TYPES['stream'], **constraints)
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async def get_channels(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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return await self.get_claims(txo_type=TXO_TYPES['channel'], **constraints)
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async def get_collections(self, **constraints) -> Tuple[List[Output], Optional[int]]:
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return await self.get_claims(txo_type=TXO_TYPES['collection'], **constraints)
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